Abstract: A centrifugal separator has a rotating tub with annular dams to trap the heavier components of the slurry fed into the tub through a centrally located feed tube. The latter rotates at a speed slightly different from that of the tub and supports radially extending spokes that have depending tines provided with lower nozzle defining ends in the annular spaces between the dams. Water under pressure emanates from these nozzles. An alternative tub configuration has annular water manifolds inside these annular spaces to provide water under pressure to nozzles in the tub itself for supplementing the action of the nozzles in the depending tines.

Abstract: A device for splitting wood including worm driven parallel threaded shafts, which shafts mount the wood splitting wedge. Threaded nut means cooperate with the shafts and with the splitting wedge for effecting movement of the wedge along the shafts. A box frame is provided for supporting the wood to be split and for mounting the parallel shafts therein.

Abstract: Apparatus for splitting logs including a base, a platform for supporting on end a log to be split, and a post mounted on the base. An axe head with a downwardly directed cutting edge is slideably received on the post which, in turn, is provided with a plurality of recesses facing in the direction of the cutting edge. A link extends between a handle and the axe head and is pivotally connected at its ends to the handle and the axe head. A fulcrum pin at one end of the handle is receivable in one of the recesses when the cutting edge is rested upon an upper end of the log. When a transverse force is applied to the end of the handle distant from the fulcrum pin, the handle is caused to rotate about the fulcrum pin from a raised position toward a lowered position forcing the cutting edge to enter the upper end of the log. With continued rotation of the handle, the cutting edge advances into the log toward its lower end at an ever faster rate, but with ever decreasing force.